Railway-car truck.



No. 810,815. Y PATENTED JAN. 23, 1906.

' F.F.SHAFFER.

RAILWAY CAB. TRUCK.

APPLICATION FILED JAN. 16, 1905.

FIG". 1.

' To all whom it may concern:

State of time srkrnls arana orrios.

FRANCIS F, SHAFFER, OF CUMBERLAND, MARYLAND, ASSIGNOR OF ONE- THIRD TO PATRICK W. CAVANAUGH, OF CUMBERLAND, MARYLAND.

RAILWAY-CAR TRUCK- Patented Jan. 23, i 6

Aonlication filed January 16,1905. Serial No 241,492.

Be it known that I, FRANoIs F. SHAFFER, a citizen of the United States, residing at Cumberland, in the county of Allegany and new and useful Improvements in Railway- Car Trucks, of which the following is a specification.

My invention relates to improvements in railway-car trucks, and is an improvement upon the car-truck for which Letters Patent were granted to me February 18, 1902, No. 693,672, the object being the production of more practical and efiicient means for distributing or equalizing the strain upon the connection between the pillow-block and bolsters.

With this object in view my invention consists of an e ualizing device for railway-car trucks embo ying novel features of construciton and combinations of parts substantially as disclosed herein. I

Figure 1 represents an elevation, 1partly in section, showing my equalizer app ied to a railwaycar truck, the mechanism being shown on one side of the truck only, as similar mechanism is of courseused on both sides. Fig. 2 represents a detail view of the pivoted lever or equalizing-plate.

In the drawin s the letter A designates the wheels. B esignates the bolster. C designates the pillow-block, and D designates the springs arranged under the bolster, all of these parts being the same in general arrangement as in my patent referred to, except that the bolster in the present case is of metal, preferably steel, and made hollow.

The bolster at each end is provided with a transverse pin or stud E, upon which is pivoted or fulcrumed the lever or plate F, each end of said plate being formed with a cup or socket G, in which fit the lower ends of the pair of rods H and H, these rods assing through openings J in the upper wall of the bolster and having upper connection portions K and K. These connection-pointsK and K are similar to the points 40 and 51, Fig. 6,-of my patent before referred to. On reference to said patent, Fig. 2, the connection of the toggle-levers 56 to the bar H and of beam 25 to the bar H'will be apparent. The use of the pivoted or fulcrumed lever in this construction forms a connection which will have a vibrating or tilting action when turning Maryland, have invented certain.

curves or at other times to properly distrib- I ute the strain and make the truck move smoothly and evenly.

It will be understood that while I have I tive and will instantly respond to the movements of the body of the car and properly distribute and equalize the strains due to movement of the car.

I claim- 1. In a railway-car truck, the combination with the bolster, of a lever frulcrumed at each end of said bolster, sockets in the ends of said levers, and rods having their lower ends engaging the sockets in the levers.

2. In a railway-car truck, the combination with the bolster having a transverse'stud or pin at each end thereof, of a lever pivoted on said stud and having sockets on each end, and rods passing through the top of the bolster and having their lower ends engaging the sockets on the levers. 3. equalizing device for railway-car trucks, comprising a pair of vertically-movable rods adapted to be arranged at each end of a bolster, and means adapted to be suspended within and at each end of the bolster for receiving the movement of the rods.

4. In a railway-car truck, the combination with a bolster, of a pair of vertically-movable rods arranged in the ends of the bolster, a lever supporting the lower end of each pair of rods, said lever receiving the movement of the rod, and means arranged in the bolster for supporting the lever.

5. In a railway-car truck, the combination with a hollow bolster, of a pair of verticallymovable rods arranged in each end thereof and extending through the top wall of the bolster, and means suspended within the bolster at each end thereof for receiving the movement of the rods.

6. An equalizing device for railway-car trucks, comprising a pair of vertically-movable rods adapted to be arranged'at each end of a bolster, and a lever adapted to be suspended within and at each end of the bolster for receiving the movement of the-rods.

7. An equalizing device for railway-car trucks, comprising a pair of vertically-movable rods adapted to be arranged at each end of a bolster, a lever adapted to be suspended l ceive the ends of a pair of rods so that the lewithin and at each end of the bolster for receiving the movement of the rods, and trans versely-extending ins arranged in each end of the bolster and adapted to suspend the lever.

8; An equalizing device for railway-car trucks, comprising a pair of vertically-movable rods adapted to be arranged at each end of a bolster, a triangular-she ed vibratory lever arranged at each end 0 the bolster and each having a pair of sockets adapted to rever will receive the movement of the rods, and a transversely-extending pin arranged in each end of the bolster and adapted to act as supports for the levers.

In testimony whereof I aflix my signature in presence of two Witnesses.

FRANCIS F. SHAFFER.

Witnesses:

CHAS. E. ME'rz, W. M. DAVIS. i 

